Book Image

Unity 5.x Shaders and Effects Cookbook

By : Alan Zucconi
Book Image

Unity 5.x Shaders and Effects Cookbook

By: Alan Zucconi

Overview of this book

Since their introduction to Unity, Shaders have been notoriously difficult to understand and implement in games: complex mathematics have always stood in the way of creating your own Shaders and attaining that level of realism you crave. With Shaders, you can transform your game into a highly polished, refined product with Unity’s post-processing effects. Unity Shaders and Effects Cookbook is the first of its kind to bring you the secrets of creating Shaders for Unity3D—guiding you through the process of understanding vectors, how lighting is constructed with them, and also how textures are used to create complex effects without the heavy math. We’ll start with essential lighting and finishing up by creating stunning screen Effects just like those in high quality 3D and mobile games. You’ll discover techniques including normal mapping, image-based lighting, and how to animate your models inside a Shader. We’ll explore the secrets behind some of the most powerful techniques, such as physically based rendering! With Unity Shaders and Effects Cookbook, what seems like a dark art today will be second nature by tomorrow.
Table of Contents (16 chapters)
Unity 5.x Shaders and Effects Cookbook
About the Authors

Chapter 7. Mobile Shader Adjustment

In the next two chapters, we are going to take a look at making the shaders that we write performance-friendly for different platforms. We won't be talking about any one platform specifically, but we are going to break down the elements of shaders we can adjust to make them more optimized for mobiles and efficient on any platform in general. These techniques range from understanding what Unity offers in terms of built-in variables that reduce the overhead of the shaders memory to learning about ways in which we can make our own shader code more efficient. This chapter will cover the following recipes:

  • What is a cheap shader

  • Profiling your shaders

  • Modifying our shaders for mobile